Cloudflare Container Sandbox▌

by cloudflare
Cloudflare Container Sandbox lets your MCP client run secure, sandboxed LLM code in Node or Python. Run code safely in t
It integrates tools for running a sandbox container with your MCP client. With this server you can allow your LLM to run arbitrary code, such as Node or Python, in a secure, sandboxed environment.
best for
- / AI assistants that need to run and test code
- / Educational tools for safe code execution
- / Prototyping and debugging without local setup
- / LLM-powered code analysis and testing
capabilities
- / Execute Node.js code in sandboxed containers
- / Run Python scripts in isolated environments
- / Process code output and results
- / Manage containerized execution environments
- / Stream code execution results
what it does
Runs arbitrary code (Node.js, Python, etc.) in secure Cloudflare-hosted sandbox containers. Lets LLMs execute code safely without local environment setup.
about
Cloudflare Container Sandbox is an official MCP server published by cloudflare that provides AI assistants with tools and capabilities via the Model Context Protocol. Cloudflare Container Sandbox lets your MCP client run secure, sandboxed LLM code in Node or Python. Run code safely in t
how to install
You can install Cloudflare Container Sandbox in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server supports remote connections over HTTP, so no local installation is required.
license
Apache-2.0
Cloudflare Container Sandbox is released under the Apache-2.0 license. This is a permissive open-source license, meaning you can freely use, modify, and distribute the software.
readme
Cloudflare MCP Server
Model Context Protocol (MCP) is a new, standardized protocol for managing context between large language models (LLMs) and external systems. In this repository, you can find several MCP servers allowing you to connect to Cloudflare's service from an MCP client (e.g. Cursor, Claude) and use natural language to accomplish tasks through your Cloudflare account.
These MCP servers allow your MCP Client to read configurations from your account, process information, make suggestions based on data, and even make those suggested changes for you. All of these actions can happen across Cloudflare's many services including application development, security and performance.
They support both the streamable-http transport via /mcp and the sse transport (deprecated) via /sse.
The following servers are included in this repository:
| Server Name | Description | Server URL |
|---|---|---|
| Documentation server | Get up to date reference information on Cloudflare | https://docs.mcp.cloudflare.com/mcp |
| Workers Bindings server | Build Workers applications with storage, AI, and compute primitives | https://bindings.mcp.cloudflare.com/mcp |
| Workers Builds server | Get insights and manage your Cloudflare Workers Builds | https://builds.mcp.cloudflare.com/mcp |
| Observability server | Debug and get insight into your application's logs and analytics | https://observability.mcp.cloudflare.com/mcp |
| Radar server | Get global Internet traffic insights, trends, URL scans, and other utilities | https://radar.mcp.cloudflare.com/mcp |
| Container server | Spin up a sandbox development environment | https://containers.mcp.cloudflare.com/mcp |
| Browser rendering server | Fetch web pages, convert them to markdown and take screenshots | https://browser.mcp.cloudflare.com/mcp |
| Logpush server | Get quick summaries for Logpush job health | https://logs.mcp.cloudflare.com/mcp |
| AI Gateway server | Search your logs, get details about the prompts and responses | https://ai-gateway.mcp.cloudflare.com/mcp |
| AutoRAG server | List and search documents on your AutoRAGs | https://autorag.mcp.cloudflare.com/mcp |
| Audit Logs server | Query audit logs and generate reports for review | https://auditlogs.mcp.cloudflare.com/mcp |
| DNS Analytics server | Optimize DNS performance and debug issues based on current set up | https://dns-analytics.mcp.cloudflare.com/mcp |
| Digital Experience Monitoring server | Get quick insight on critical applications for your organization | https://dex.mcp.cloudflare.com/mcp |
| Cloudflare One CASB server | Quickly identify any security misconfigurations for SaaS applications to safeguard users & data | https://casb.mcp.cloudflare.com/mcp |
| GraphQL server | Get analytics data using Cloudflare’s GraphQL API | https://graphql.mcp.cloudflare.com/mcp |
Access the remote MCP server from any MCP client
If your MCP client has first class support for remote MCP servers, the client will provide a way to accept the server URL directly within its interface (e.g. Cloudflare AI Playground)
If your client does not yet support remote MCP servers, you will need to set up its respective configuration file using mcp-remote (https://www.npmjs.com/package/mcp-remote) to specify which servers your client can access.
{
"mcpServers": {
"cloudflare-observability": {
"command": "npx",
"args": ["mcp-remote", "https://observability.mcp.cloudflare.com/mcp"]
},
"cloudflare-bindings": {
"command": "npx",
"args": ["mcp-remote", "https://bindings.mcp.cloudflare.com/mcp"]
}
}
}
Using Cloudflare's MCP servers from the OpenAI Responses API
To use one of Cloudflare's MCP servers with OpenAI's responses API, you will need to provide the Responses API with an API token that has the scopes (permissions) required for that particular MCP server.
For example, to use the Browser Rendering MCP server with OpenAI, create an API token in the Cloudflare dashboard here, with the following permissions:
<img width="937" alt="Screenshot 2025-05-21 at 10 38 02 AM" src="https://github.com/user-attachments/assets/872e253f-23ce-43b3-983c-45f9d0f66100" />Need access to more Cloudflare tools?
We're continuing to add more functionality to this remote MCP server repo. If you'd like to leave feedback, file a bug or provide a feature request, please open an issue on this repository
Troubleshooting
"Claude's response was interrupted ... "
If you see this message, Claude likely hit its context-length limit and stopped mid-reply. This happens most often on servers that trigger many chained tool calls such as the observability server.
To reduce the chance of running in to this issue:
- Try to be specific, keep your queries concise.
- If a single request calls multiple tools, try to to break it into several smaller tool calls to keep the responses short.
Paid Features
Some features may require a paid Cloudflare Workers plan. Ensure your Cloudflare account has the necessary subscription level for the features you intend to use.
Contributing
Interested in contributing, and running this server locally? See CONTRIBUTING.md to get started.
FAQ
- What is the Cloudflare Container Sandbox MCP server?
- Cloudflare Container Sandbox is a Model Context Protocol (MCP) server profile on explainx.ai. MCP lets AI hosts (e.g. Claude Desktop, Cursor) call tools and resources through a standard interface; this page summarizes categories, install hints, and community ratings.
- How do MCP servers relate to agent skills?
- Skills are reusable instruction packages (often SKILL.md); MCP servers expose live capabilities. Teams frequently combine both—skills for workflows, MCP for APIs and data. See explainx.ai/skills and explainx.ai/mcp-servers for parallel directories.
- How are reviews shown for Cloudflare Container Sandbox?
- This profile displays 10 aggregated ratings (sample rows for discoverability plus signed-in user reviews). Average score is about 4.5 out of 5—verify behavior in your own environment before production use.
Ratings
4.5★★★★★10 reviews- ★★★★★Shikha Mishra· Oct 10, 2024
Cloudflare Container Sandbox is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
- ★★★★★Piyush G· Sep 9, 2024
We evaluated Cloudflare Container Sandbox against two servers with overlapping tools; this profile had the clearer scope statement.
- ★★★★★Chaitanya Patil· Aug 8, 2024
Useful MCP listing: Cloudflare Container Sandbox is the kind of server we cite when onboarding engineers to host + tool permissions.
- ★★★★★Sakshi Patil· Jul 7, 2024
Cloudflare Container Sandbox reduced integration guesswork — categories and install configs on the listing matched the upstream repo.
- ★★★★★Ganesh Mohane· Jun 6, 2024
I recommend Cloudflare Container Sandbox for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
- ★★★★★Oshnikdeep· May 5, 2024
Strong directory entry: Cloudflare Container Sandbox surfaces stars and publisher context so we could sanity-check maintenance before adopting.
- ★★★★★Dhruvi Jain· Apr 4, 2024
Cloudflare Container Sandbox has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
- ★★★★★Rahul Santra· Mar 3, 2024
According to our notes, Cloudflare Container Sandbox benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
- ★★★★★Pratham Ware· Feb 2, 2024
We wired Cloudflare Container Sandbox into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
- ★★★★★Yash Thakker· Jan 1, 2024
Cloudflare Container Sandbox is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.